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Fair Value Measurement and Fair Value of Financial Instruments (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Geographic Concentration 25.00%  
Debt Securities Realized Loss $ 24,000  
Impaired Financing Receivable, with Related Allowance, Recorded Investment 5,016,000 5,435,000
Impaired Financing Receivable, Related Allowance $ 415,000 $ 645,000
Collateralized mortgage obligations [Member] | California [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Geographic Concentration 18.20%  
Collateralized mortgage obligations [Member] | Arizona [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Geographic Concentration 10.50%  
Collateralized mortgage obligations [Member] | Virginia [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Geographic Concentration 6.10%  
Collateralized mortgage obligations [Member] | Florida [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Geographic Concentration 6.50%  
Collateralized mortgage obligations [Member] | Nevada [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Geographic Concentration 6.30%